北京市2010年中考英语模拟试题及答案(6)

　　56.The world is thirsty for water because_________.

　　A. man has not got enough food to eat.

　　B. We haven’t got enough fresh water.

　　C. Only 70% of the earth’s surface is water.

　　D. More water is sent into sewer system

　　57. The underlined word valuable means______.

　　A. much and salty B. fresh and enough

　　C. dear and useful D. clean and helpful

　　58. What should we do if we want to have enough fresh water?

　　(a) Make full use of the sea water.

　　(b) Carry salt water into lakes or rivers

　　(c) Try to save the fresh water as much as possible.

　　(d) Do our best to use the water again.

　　(e) Drink and use all the water on the earth’s surface.

　　A. (c) and (e) B. (a) and (d) C. (a), (c) and (d) D.(b) (d) and (e)

　　59. The best but the most difficult way to solve (解决) the water problem of the world is to _______.

　　A. remove the salt from sea water B. make the water in cities clean.

　　C. take the water from underground D. make the need for water smaller

　　60. What is the best title for this passage?

　　A. The Importance of the water B. The World’s Water Problem

　　C. The Thirsty World D. Fresh Water and Sea Water